package com.xius.filter;

/**
 * @ClassName CorsFilter
 * @Description TODO
 * @Author 谭庆伟
 * @Date 2020/6/4 10:25
 * @Version 1.0
 **/
import org.springframework.context.annotation.Configuration;

import javax.servlet.*;
import javax.servlet.annotation.WebFilter;
import javax.servlet.http.HttpServletResponse;
import java.io.IOException;

/**
 * 解决跨域问题
 */
@WebFilter(filterName = "MyCorsFilter")
@Configuration
public class MyCorsFilter implements Filter {
    @Override
    public void init(FilterConfig filterConfig) throws ServletException {

    }

    @Override
    public void doFilter(ServletRequest req, ServletResponse res, FilterChain chain) throws IOException, ServletException {
        HttpServletResponse response = (HttpServletResponse) res;
        response.setHeader("Access-Control-Allow-Origin","*");
        response.setHeader("Access-Control-Allow-Credentials", "true");
        response.setHeader("Access-Control-Allow-Methods", "POST, GET, PATCH, DELETE, PUT");
        response.setHeader("Access-Control-Max-Age", "3600");
        response.setHeader("Access-Control-Allow-Headers", "Origin, X-Requested-With, token, Content-Type, Accept");
        chain.doFilter(req, res);
    }

    @Override
    public void destroy() {

    }
}